Standard Retrofit Roof Drains

One-piece spun Aluminum body with Heavy-Duty dome strainer & clamping ring for years of long-lasting durability.  Featuring the USMS DS (Double Seal) No leak mechanical Water-Tite seal (Patent pending)!  Currently this seal is designed to mechanically expand both the Upper Seal to tighten firmly to the drain’s stem and the Lower Seal to the inside of the actual drainpipe in which it is inserted, simply by turning 4 screws perpendicular from one another, each an equal number of turns so that it seals evenly to both the drain itself and the actual drainpipe.  Note: Extended Hex* adjustment tool is included with every roof drain.  (*No more worries with Robertson #2 Sq. Head tool that can easily strip the screw head!)

Material:  Aluminum

Drain Body: 11 Gauge (.125) spun aluminum

Flange:  17.5″ diameter with sump area

Clamping Ring:  Cast aluminum

Dome Strainer:  Cast aluminum

Stem:  12″ length

Available in 3″, 4″, 5″, & 6″ sizes

USMS DS Water-Tite Seal (Patent pending) with adjustment tool included in package.

2″ & 8″ sizes also available with double-O-ring seals.

• ASME 112.6.4 – Establishes minimum design requirements for roof drains and certified by QAI Laboratories.
• CSA-B79-08 – Canadian Standards Association standard for commercial and residential drains and cleanouts and certified by QAI Laboratories.
• ANSI/SPRI RD-1 – National performance standard for retrofit roof drains which requires the seal to hold a 10-ft. column of water for 24 hours without leaking.